11889674564567 has 4 divisors (see below), whose sum is σ = 11895371583696. Its totient is φ = 11883977545440.

The previous prime is 11889674564527. The next prime is 11889674564597. The reversal of 11889674564567 is 76546547698811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11889674564567 - 2⁸ = 11889674564311 is a prime.

It is a super-2 number, since 2×11889674564567² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889674564527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848506434 + ... + 2848510607.

It is an arithmetic number, because the mean of its divisors is an integer number (2973842895924).

Almost surely, 2^{11889674564567} is an apocalyptic number.

11889674564567 is a deficient number, since it is larger than the sum of its proper divisors (5697019129).

11889674564567 is an equidigital number, since it uses as much as digits as its factorization.

11889674564567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697019128.

The product of its digits is 2438553600, while the sum is 77.

The spelling of 11889674564567 in words is "eleven trillion, eight hundred eighty-nine billion, six hundred seventy-four million, five hundred sixty-four thousand, five hundred sixty-seven".